BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Memento EPFL// BEGIN:VEVENT SUMMARY:Bio-inspired Delivery Systems for Flavors and Fragrances DTSTART;VALUE=DATE-TIME:20180416T131500 DTEND;VALUE=DATE-TIME:20180416T141500 UID:94220074ae9c97d696cb6c1ac9c6df5a417bfdec946ac13d637fbb32 CATEGORIES:Conferences - Seminars DESCRIPTION:Dr Daniel Benczédi\, Corporate R&D\, Firmenich SA\nMost of th e consumer goods that we use every day contain flavors to make them taste good or fragrances to make them smell clean and fresh. Flavors and fragran ces are typically composed of dozens of organic molecules characterized by high volatility and in most cases\, by limited water solubility. There is thus a need to make fragrances last longer\, more particularly in home an d body care applications involving their dilution or rinsing-off with wate r. Similarly\, there is a need to protect flavors exposed to moisture\, te mperature or pH variations to extend their shelf-life in foods and beverag es.\n A thorough understanding of the molecular fate of flavors and fragr ances is thus a prerequisite to their hedonic performance when used. Furth ermore\, a broad range of formulation methodologies are available to solub ilize or encapsulate flavors and fragrances and to enhance their performan ce in consumer goods of variable chemical composition or physical format. The challenge for formulation engineers is to develop delivery systems tha t are safe\, affordable and sustainable. We show how design principles ins pired by biological structures are leveraged to develop differentiating de livery systems.\n We first review how flavor and fragrance molecules are able to partition between water and oil and how their interfacial molecula r packing is able to influence the phase behavior of consumer goods. We th en show how this can be used to optimize the levels of surfactants needed to solubilize fragrances or to engineer multi-scale hierarchical structure s with well-defined functionalities. We also illustrate how organic and in organic building blocks can be combined to adjust the mechanical and mass transport properties of the resulting barrier materials. We finally highli ght how the surface properties of these controlled-release systems can be modified to enhance their affinity towards inorganic substrates or biologi cal ones like hair or skin.            \n \nV. Tchakalova et a l.\, (2014)\, Evaporation triggered self-assembly in aqueous fragrance–e thanol mixtures and its impact on fragrance performance\, Colloids and Sur faces A: Physicochemical & Engineering Aspects\, 460\, 414-421.\n \nB. Du ncan et al.\, (2015)\, Hybrid organic-inorganic colloid composite sponges via internal cross-linking\, Small 11(11)\, 1302-1309.\n \nK. A. Günay e t al. (2017)\, Peptide enhanced selective surface deposition of polymer-ba sed fragrance delivery systems\, Advanced Functional Materials\, 27(2)\, 1 603847.\nBio: Daniel Benczédi obtained an engineering degree in Food Scie nce and Technology in 1991 followed by a PhD in Materials Science in 1995 at the ETH in Zurich in the field of polymer physics and biopolymer proces sing. He has since spent his entire career in the flavor and fragrance ind ustry working in Research & Development. The main topics of his research a re soft matter physics and colloid chemistry for the engineering of delive ry systems. He has an executive MBA obtained at the IMD in Lausanne in 200 2. Since 2008\, he is Vice President Materials Science at Firmenich SA in Geneva. Today\, he is in charge of an international team located in three countries (Switzerland\, United State\, China).\n\n  LOCATION:MXF 1 STATUS:CONFIRMED END:VEVENT END:VCALENDAR